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Toyota Sienna
2023 · hybrid, van
9 measured figures
9 of the 9 figures this market publishes for a car like this one are measured for this car. This market publishes no overall score, so there is no share of a composite weight to measure confidence against; figures_measured says how many of this market's figures the row carries, and contributing_publishers says who measured them
Measured figures
Fuel economy35.6 mpg (US gallons)Measured by NRCan · configuration: Sienna · also 6.6 L/100 km
Tailpipe CO₂154 g/kmMeasured by NRCan · CO₂ basis: tailpipe_rated · configuration: Sienna · also 248 g/mile
Engine horsepowerFree with an accountMeasured for this car, with its publisher and basis
Kerb weightFree with an accountMeasured for this car, with its publisher and basis
EPA test weightFree with an accountMeasured for this car, with its publisher and basis
WarrantyFree with an accountMeasured for this car, with its publisher and basis
Recall campaignsFree with an accountMeasured for this car, with its publisher and basis
NHTSA overall ratingFree with an accountMeasured for this car, with its publisher and basis
Complaints per 10,000 builtFree with an accountMeasured for this car, with its publisher and basis
7 more measured figures for this car — Engine horsepower, Kerb weight, EPA test weight, Warranty, Recall campaigns, NHTSA overall rating, Complaints per 10,000 built — each with the publisher that measured it and the basis it is on. Free to read with an account.
Figures this car does not carry
Fuel economy (MPGe)Not published for this carFuel economy (MPGe) is published for electric and hydrogen cars, whose economy is published as MPGe: energy converted at 33.7 kWh per gallon, not fuel burned; this car is not one of them, so the figure is not the same quantity for it
Tailpipe CO₂ (charge-weighted)Not published for this carthis car's CO₂ is published as the tailpipe rating for the car driven as rated on the test cycle (154 g/km), not as a composite weighted across electric and fuel-burning miles, so it is not the quantity this list orders. It is published as Tailpipe CO₂
HorsepowerNot published for this carNot published for this car. The record's own reason is free to read with an account.
PriceNot published for this carNot published for this car. The record's own reason is free to read with an account.
5-Year Running Costs
| Fuel | US$6,280 |
| Insurance | US$7,100 (modelled) |
| Maintenance | US$5,200 (class estimate) |
| Repairs | US$8,000 (modelled) |
| Depreciation | not estimated — we hold no purchase price for this car, and it is not assumed. |
| Total | not estimated — a component above is unknown or modelled |
Running costs only — the purchase price is not included. The five-year running cost is an ESTIMATE, not a measurement of this car: only its fuel half is computed from the car's own measured consumption and a dated pump price (see fuel_price_source and fuel_price_as_of in the market's own figures); insurance, maintenance and repairs are class models. It orders no list and is not one of this market's published figures. Fuel is this car's own combined consumption over 15,000 km a year at 1.738 CAD a litre of petrol (Statistics Canada. Table 18-10-0001-01 Monthly average retail prices for gasoline and fuel oil, by geography; Canada; regular unleaded gasoline at self service filling stations, 2026-08). Adapted from Statistics Canada, Table 18-10-0001-01 Monthly average retail prices for gasoline and fuel oil, by geography, August 2026. This does not constitute an endorsement by Statistics Canada of this product. Costs are in US dollars; the CAD pump price is converted at 1 CAD = 0.73 USD, the rate set on 2026-09-13. Insurance, maintenance and repairs are models, not figures for this car: insurance from its power, weight and crash rating, maintenance from its make's class, repairs from its complaint and recall counts. They are shown for scale and are not used to rank it. Confidence is low: several components are modelled from class averages.
Known Issues
SERVICE BRAKES
25 complaint(s) · 3 report a crash, fire, injury or death
While driving slowly into a parking slot, the brakes released and the vehicle surged over a parking block and into a sign. On a couple of time previously, I have encountered similar situations but nev…
UNKNOWN OR OTHER
16 complaint(s) · 3 report a crash, fire, injury or death
No system is failed in our sienna. Only safety problem we have is the rear view mirror completely block off when kid use the entertainment system. When I talk to the deanship, they told me they can't…
ELECTRICAL SYSTEM
6 complaint(s) · 1 reports a crash, fire, injury or death
Our family bought a 2023 new Toyota Sienna [VIN [XXX] ] on July 7, 2023 paying the full price plus premium dealer markup from Elmore Toyota in Westminster, Orange County, California on January 7, 2023…
VISIBILITY/WIPER
6 complaint(s)
Driving along a rural road under 40 mph at 11:30 at night with no other traffic present. There was a slight transition in pavement from a possible small culvert replacement. The defrost was on high an…
AIR BAGS
3 complaint(s) · 2 report a crash, fire, injury or death
Air bags did not deploy during a major crash took place on 9-25-2024 the vehicle was a total loss.
POWER TRAIN
3 complaint(s)
We had a "hybrid system malfunction" warning on the dashboard and the van slowed down to 20 mph on a climb. With the flow of traffic at 50mph on a two lane road and no shoulder to pull off, this cause…
SEAT BELTS
3 complaint(s) · 1 reports a crash, fire, injury or death
In a couple of instances the latch mechanism in 2 different seats became loose during trip. In one ocassion there was an alarm while in the second ocassion we realized when removing the car seat of an…
PARKING BRAKE
2 complaint(s)
SEATS
2 complaint(s)
The 3rd row seats in the Sienna do not stay stowed as there is no lock. This creates a very dangerous situation when braking. I just got this car a few days ago and already have issues. When I brake…
STRUCTURE:BODY
2 complaint(s) · 1 reports a crash, fire, injury or death
I parked the car in the garage and my child left the passanger side sliding door open. Then, the door malfunctioned because it would not electronically close after being left open more than 80 minut…
The 10 components named in the most complaints are shown, of 21 named in all.
These complaints are filed under SIENNA HYBRID, a name NHTSA also uses for other versions of this car, so some may concern those versions.
Data sources
- NRCan — fuel consumption ratings and vehicle class
- NHTSA — crash-test ratings, recalls and owner complaints
- New York State DMV — New York registrations, the cross-check on that denominator
- NHTSA — vehicles built for the US market, the complaint-rate denominator
- carstandings.com — basic-warranty terms, from this site's reviewed table
- EPA — horsepower and EPA test weight, from the Test Car List
- EPA — production volumes by make, from Automotive Trends
- NHTSA — body style and the crash-tested vehicle's curb weight, from the NCAP crash-test file
- NHTSA — body style and engine horsepower, from the vPIC VIN decoder